l glutathione skin whitening L-Glutathione Serum for Radiant L- Glutathione Day & Night

Some DIY beauty gurus address this issue by remaking the vitamin C serum weekly to ensure it is always fresh and delivers results

I apply it on damp skin immediately after a shower

For a quick summary, see this quote from one study : RESULTS: As one of the most powerful antioxidants in the skin, vitamin C has been shown to protect against photoaging, ultraviolet-induced immunosuppression, and photocarcinogenesis

Like I just mentioned, I have a not-so-small list of effective anti-aging ingredients

You can add couple drops of essential oils to have some scent

Free radicals are unstable atoms that can damage our cells